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OLS Field Name OLS Field Data
Main Title Method 1664: N-Hexane Extractable Material (HEM) and Silica Gel Treated N-Hexane Extractable Material (SGT-HEM) by Extraction and Gravimetry (Oil and Grease and Total Petroleum Hydrocarbons), January 1995.
CORP Author DynCorp Viar, Inc., Reston, VA. Environmental Services Div.;Environmental Protection Agency, Washington, DC. Engineering and Analysis Div.
Publisher Jan 95
Year Published 1995
Report Number EPA/821/B-94/004A; EPA-68-C3-0337;
Stock Number PB95-196648
Additional Subjects Water pollution monitoring ; Hexanes ; Extraction ; Gravimetric analysis ; Chemical analysis ; Test methods ; Silica gel ; Quality control ; Pollution regulations ; Oils ; Crude oil ; Petroleum products ; Greases ; Clean Air Act ; EPA Method 1664 ; HEM ; SGT-HEM
Library Call Number Additional Info Location Last
NTIS  PB95-196648 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 09/02/1995
Collation 95p
Abstract Method 1664 was developed by the United States Environmental Protection Agency Office of Science and Technology to replace previously used gravimetric procedures that employed Freon-113, a Class I CFC, as the extraction solvent for the determination of oil and grease and petroleum hydrocarbons. Method 1664 is a performance-based method applicable to aqueous matrices that requires the use of n-hexane as the extraction solvent and gravimetry as the determinative technique. In addition, quality control (QC) procedures designed to monitor precision and accuracy have been incorporated into Method 1664.
Supplementary Notes Supersedes PB95-123436. Sponsored by Environmental Protection Agency, Washington, DC. Engineering and Analysis Div.
Category Codes 68; 68D; 99A
NTIS Prices PC A05/MF A01
Primary Description 100/00
Document Type NT
Cataloging Source NTIS/MT
Control Number 521402190
Origin NTIS
Type CAT